Multiple punching attachment for platen printing-presses



W. C. mLLlNGHAM, DECD.

C. H. DILLINGHAM, ADMINISTRATOR. MULTIPLE PUNCHING ATTACHMENT FOR PLATEN PRINTING P358858.

Patented Dec.

- APPLICATION FILED SEPT. 20, 917. 1,362,088..

UNETED STATES PATENT OFFICE.

WILLIADI G. DILLINGI-IAM, 0F LOS ANGELES, CALIFORNIA; CHARLE s H. DILLINGHAM ADMINISTRATOR OF SAID WILLIAM C. DILLINGHAM, DEGEASE]) Application filed September 20, 1917.

- To all whom it may concern.

Be it known that I, WILLIAM C. D1LL11 IG- HAM, a citizen of the United States, reading at Los Angeles, in the county of Los Angeles and State of California, have 1nvented a new and useful Multiple Punching Attachment for Platen Printing-Presses and the like, of which the following is a specification.

A11 object of my invention is to provide means for converting a platen printing press into a punching machine.

Specifically an object of this inventlon 1s to provide an appliance which can be attached to and detached from a platen press and when attached may be operated by such press for the purpose of punch1ng holes through printed or unprlnted sheets of paper, card-board, or the like, and which is adapted to be adjusted so as to punch any desired number of holes 1n any desired relative position.

Other objects are simplicity, durability, ease of attachment to and removal from the platen press, and ease of operation.

Other objects and advantages may appear from the accompanying drawings, the subjoined detail description and appended claims.

The accompanying drawings illustrate the invention.

Figure 1 is a plan view of the attachment as the same appears when in use on a platen press, a fragment of the platen of which is shown as seen by the operator bending over from in front of the press, with the press open, the direction of sight being indicated by the arrow 1 in Fig. 6.

F ig. 2 is an end View of the attachment as-projected from Fig. 1, looking in the direction of the arrow 2, thus bringing the parts bottom end up.

Fig. 3 is a longitudinal section on line Figs. 1, 2 and 6, showing the punch open.

Fig. 4 is a fragmental longitudinal section on line 03*, Figs. 1', 2 and 6, showing the punch closed by contactwith the type bed, a fragment of which is also shown.

Fig. 5 is a fragmental cross section on line a Figs. 1 and 3.

Fig. 6 is an elevational detail of the appliance on a press, the press being fragmentally shown closed in full lines and open in dotted lines.

Specification of Letters Patent.

Patented Dec. 14, 1920. Serial No. 192,404.

F 1g. 7 1s a fragmental longitudinal sectlonal detail on line :0 Figs. 1, 2 and 6.

F1g. 8 1s a fragmental longitudinal sectional detail on line :8 Figs. 1, 2 and 6.

The attachment comprises the frame 1 the feed board 2 rigidly secured to the frame the means 3 for holding the attachment iri place upon the printing press platen 4, the lower reed gage 5, the side feed gage 6, and the interchangeable punch and die outfits 7.

The frame 1 comprises the lower rectangular bar and the upper rectangular bar rigidly oined together by the round side bars 10 and 11. Holes are bored throu h the ends of the bars 8 and 9, the ends of the bars 10 and 11 are reduced to fit the holes and the nuts 12 are applied.

The feed board 2 is a rectangular plate secured on top of the bars 8 and 9 by screws 13 lnserted through the plate and tapped into the bars. The feed board 2 is considerably shorter than the bars 8 and 9 and is nearer to the bar 11 than to the bar 10, so as to make room for the side feed gage 6 and the punch and die outfits 7. The means 3 for holding the attachment 1n place upon the platen comprises the plates 13 rigidly secured to the lower face of the lower bar 8 and extending downwardly to ht tightly between the bail 14 and the lower edge of the platen 4; clamping arms 15 rigidly secured to the upper face of the upper bar 9 and extending past the upper edge of the platen 4 over the bail 14 and downwardly under the platen; and clamping screws 16 screw-seated in the clamping arms, so that when the screws are tightened the bar 9 is drawn against the upper face of the platen.

The details of the lower feed gage 5 are as follows: The bearing blocks 17 and 18 are slidingly mounted upon the side bars 10 and 11 and adapted to be held in adjusted positions by the set-screws 19 and 20. The gage bar 21 is rigidly secured to the blocks 17 and 18 and passes over and above the feed board 2. The gage fingers 22 fit against the lower edge of the gage bar 21 and have longitudinally extended rounded lower edges pressing and running upon the feed board 2, said gage fingers being carried by integral loops 23 extending over, downwardly and under the gage bar21, so that the fingers may be moved longitudinally on the gage bar, and the gage bar presses the fingers tightly upon the feed board so that the paper or card-board 24 passes under the gage bar and is stopped by the gage fingers. The paper-supporting finger 25 is located below the gage bar 21 and on a level below the feed board to bridge the space between the bearing block 17 and the feed board, said supporting finger having a down-turned end 26 secured to the bearing block 17 by a screw 27.

The details of the side feed gage 6 are as follows :-The bearing block 28 is slidingly mounted upon the side bar 10 and held in adjusted position by the set-screw 29, and a long screw 30 projectsfrom the bearing block toward the feed board 2. The hand nut 31 is mounted upon the screw 30 to form an adjustable stop for the paper 24, and a tubular paper supporting finger 32 extends from the nut 31 to and under the feed board 2.

The details of one of the interchangeable punch and die outfits 7 are as follows: The bearing block 33 is slidingly mounted upon the side bar 10 and held in adjusted position by the set-screw 34. The punch holder plate 35 extends from the bearing block 33 and rests upon the platen 4, and the punch 36 is mounted in the holder, the face of the punch 36 being below the level of the feed board 2 so that the paper 24 will pass over the punch. The stripper plate 37 is secured at one end to the holder Jlate 35 by a bolt 38 and is yieldingly upheld by a spring 39, said stripper plate having a hole through which the punch 36 operates freely, and said stripper plate being normally on a level with the feed board 2 so as to receive and support the paper 24. The die 40 is formed in the end of a sheet metal plate integral with the spring die holder 41, said die holder being in the form of a return bend, and one end of the die holder is secured by the bolt 38. The spacing die block 42 is secured to the die 40 to be engaged by the type-bed 43, so that at the impression instant of the press the paper is punched. The punch and die may be of any form required for punching paper and card board, and the outfits may be changed by removing bodily from the bar 10. One, two, or more punches may be used in a set-up.

The multiple punching attachment thus constructed should fit the width of the platen up and down and should be shorter than the length of the platen, so as to go between the ink roller tracks 44 at the vertical sides of the type-bed. At the impression instant the attachment occupies the space usually occupied by the type-form between the ink roller tracks.

In applying the attachment, the tympan, grippers, type form and ink rollers are first removed from the press.

. The details may be varied in many ways without departing from. the spirit of my invention.

I claim:

1. A multiple punching attachment for platen presses comprising a frame adapted to fit a platen, means for securing the frame to the platen, a feed board secured to the frame, a lower feed gage adjustably mounted upon the frame, a side feed gage adjustably mounted upon the frame, and punch and die outfits adjustably mounted upon the frame.

2. A multiple punching attachment for platen presses comprising a frame adapted to fit a platen, means for securing the frame to the platen comprising plates secured to the frame and adapted to fit between the platen and a lower bail, and clamps secured to the frame and adapted to engage around the upper edge of the platen; a feed board secured to the frame, a lower feed gage adjustably mounted upon the frame, a side feed gage adjustably mounted upon the frame, and punch and die outfits adjust-ably mounted upon the frame.

3. In a multiple punching attachment for platen presses, upper and lower frame bars, side bars connecting the ends. of the upper and lower frame bars, a feed board secured to the upper and lower frame bars, plates secured to the lower bar and adapted to fit between a platen and a lower bail, and clamps secured to the upper 'rame bar and adapted to extend around the upper edge of the platen.

4. In a multiple punching attachment for platen presses, upper and lower frame bars, side bars connecting the ends of the upper and lower frame bars, a feed board secured to the upper and lower frame bars, plates secured to the lower bar and adapted to fit between a platen and a lower bail, clamps secured to the upper frame bar and adapted to extend around the upper edge of the platen, a lower feed gage adjustably mounted upon the side bars, and a side feed gage adjustably mounted upon one side bar.

5. In a multiple punching attachment for platen presses, upper and lower frame bars, side bars connecting the ends of the upper and lower frame bars, a feed board secured to the upper and lower frame bars, plates secured to the lower bar and adapted to fit between a platen and a lower bail, clampssecured to the upper frame bar and adapted to extend around the upper edge of the platen, a lower feed gage adjustably mounted upon the side bars, a side feed gage adjustably mounted upon one side bar, and punch and die outfits adjust-ably mounted upon one side bar- 6. In a multiple punching attachment for platen presses, a frame adapted to be attached to a platen and including parallel side bars which rigidly hold the frame together, a feed board secured to the frame, bearing blocks adjustably and slidingly mounted upon the side bars, a gage bar connecting the bearing blocks and passing above the feed board, and gage fingers slidingly mounted upon the gage bar and pressing upon the feed board.

7. In a multiple punching attachment for platen presses, a frame including a side bar, a feed board mounted upon the frame, a bearing block slidingly mounted upon the side bar, a screw extending from the bearing block toward the feed board, a nut mounted upon the screw and forming a paper stop, and a tubular finger extending from the nut under the feed board.

8. In a multiple punching attachment for platen presses, a frame adapted to be attached to a platen and including side bars which hold the frame together, a bearing block slidingly mounted on one side bar, and a punch and die carried by the bearing block.

9. In a multiple punching attachment for platen presses, a frame adapted to be at tached to a platen and including side bars which hold the frame together, means for for platen presses, a frame including parallel side bars; a bearing block adjustably and slidably mounted upon each side bar; a gage bar connecting the bearing blocks; a feed board secured to the frame below the gage bar and spaced apart from one of the side bars; and a paper-supporting finger secured to the block upon the last-named side bar below the level of the feed board and bridging the space between the last-named block and the feed board.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 30th day of March 1917 WILLIAM C. DILLINGHAlVI.

Witness:

JAMES R. TOWNSEND. 

